package com.wwz.springcloud.service;

import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

import cn.hutool.core.util.IdUtil;

@Service
public class PaymentService {
    /**
    * @Description: 正常访问
    * @create: 2020-05-25 15:59
    * @update logs
    * @throws Exception
    */
    public String paymentInfo_OK(Integer id){
        return "线程池："+Thread.currentThread().getName()+" paymentInfo_OK,id: "+id+"\t"+"O(∩_∩)O";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="5000")
    })
    public String paymentInfo_TimeOut(Integer id){
        //int timeNumber = 5;
        try {

            TimeUnit.SECONDS.sleep(3000);

        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池："+Thread.currentThread().getName()+" paymentInfo_TimeOut,id: "+id+"\t"+"55555"+"时间耗时";
    }

    public String paymentInfo_TimeOutHandler(Integer id){
        return "线程池："+Thread.currentThread().getName()+" 8001系统繁忙或者运行报错,id: "+id+"\t"+"/(ㄒoㄒ)/~~";
    }

    //=====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }
}
